黄萎病一直被认为是棉花的“癌症”。目前,中科院研究人员发现天麻中存在着4个抗真菌蛋白基因gafp,gafp对包括黄萎病在内的多种真菌具有较好抗性,其中,gafp4具有最强的抑菌活性,且带有胞间质定位的信号肽可以明显增强抗性。研究人员将gafp4转入2个陆地棉栽培品种,并进行连续三年黄萎病鉴定试验表明,gafp4对不同生理型黄萎病菌株都具有非常明显的抗性,是一个有效的高抗棉花黄萎病蛋白。尤为重要的是,gafp4转基因棉花在纤维产量上也有 Verticillium wilt has always been considered the “cancer” of cotton. At present, Chinese Academy of Sciences researchers found that there are four antifungal protein gene gfp in Tianma, gafp on a variety of fungi, including Verticillium wilt have better resistance, of which gafp4 has the strongest antibacterial activity, and with The signal peptide located in the interstitial can significantly enhance the resistance. The researchers transferred gafp4 into two Upland cotton cultivars and tested the Verticillium wilt for three years in a row. The results showed that gafp4 had a significant resistance against different pathogenic Verticillium wilt strains and was an effective anti-cotton yellow Wilt disease protein. More importantly, gafp4 transgenic cotton also has fiber yield